At least one of the two Guiders in each patrol needs to have current first aid training. But what level is necessary?
OFA1 or Emergency First Aid is sufficient for your patrol if you are staying on site with your patrol.
Standard First Aid is required if you would like to be considered to join any of the off-site program groups during the day as the First Aider. You are more likely to be selected to join off-site program groups if you have Standard First Aid.